Lenses for communication devices

ABSTRACT

Some embodiments disclosed herein relate to a lens component having one or more lenses attached to a retainer portion configured to removably attach to communication devices such as mobile phones, tablet computers, media players, and the like. The retainer portion may be configured so as not to interfere with a user&#39;s view of a display panel of the communication device. In some embodiments, a plurality of lenses may be provided, and the lenses may be removably attached to the retainer portion and may be interchangeable. A structure for providing a flash may also be provided. In some embodiments, additional features may be provided, such as attachment components to facilitate attachment to stability devices, such as tripods, and to user-wearable accessories.

RELATED APPLICATIONS

This is a continuation of U.S. patent application Ser. No. 13/366,227,filed Feb. 3, 2012, and entitled “Selectively Attachable and RemovableLenses for Communication Devices,” which claims the benefit under 35U.S.C. §119(e) of U.S. Provisional Patent Application No. 61/454,136,filed on Mar. 18, 2011 and entitled “Removable Lenses for CommunicationDevices,” U.S. Provisional Patent Application No. 61/503,835, filed onJul. 1, 2011 and entitled “Removable Lenses for Communication Devices,”and U.S. Provisional Patent Application No. 61/585,857, filed on Jan.12, 2012 and entitled “Selectively Attachable and Removable Lenses forCommunication Devices,” the entire contents of all of which are herebyincorporated by reference herein and made part of this specification forall that they disclose.

BACKGROUND OF THE INVENTIONS

1. Field of the Inventions

This invention relates generally to accessories for communicationdevices (e.g., mobile telephones, mobile texting devices, electronic paddevices, laptop computers, desktop computers, gaming devices, and/ordevices capable of linking electronically to another device or to anetwork such as the Internet, etc.), and specifically to removablefunctional components for communication devices.

2. Description of the Related Art

In recent years, many advances in computer networking and processingtechnology have made it possible for communication devices to includecameras that permit users to capture images. In many cases, these imagescan be stored, processed, and transmitted. However, there are manydesign constraints on onboard cameras in communication devices that canlimit the weight, size, expense, shape, adjustability, and overallquality of the lensing systems of such cameras. Consequently, manycameras in communications devices are inadequate for a wide variety ofphotographic needs and may produce poor quality photographic images.These deficiencies cannot be addressed by existing modular or detachablelensing systems for use with conventional film or digital cameras due tosignificant differences between such lensing systems and communicationdevices, including incompatibilities in attachment structures, weight,optics, size, transportation, storage, ergonomics, and/or portability.

BRIEF DESCRIPTION OF THE DRAWINGS

Certain embodiments of the inventions will now be discussed in detailwith reference to the following figures. These figures are provided forillustrative purposes only, and the inventions are not limited to thesubject matter illustrated in the figures.

FIGS. 1A-1I illustrate nine different views of an example of a removablyattachable lens system for a communication device.

FIGS. 2A-2B illustrate the lens system of FIGS. 1A-1I being attached toexamples of communication devices.

FIGS. 3A, 3B, 4A, 4B, 5A, 5B, 6A, and 6B illustrate other examples oflens systems being attached to other examples of communication devices.

FIGS. 7A-7I illustrate an example of a multiple lens system with aplurality of lenses used for different purposes.

FIGS. 8A-8I illustrate an example of a lens system with additionalstructures to facilitate attachment to a communication device.

FIGS. 9A-9E illustrate additional views of the lens system of FIGS.8A-8I.

FIGS. 10A-10C illustrate the lens system of FIGS. 7A-7I being attachedto an example of a communication device.

FIGS. 11A-11F illustrate examples of lens systems with lens portionsthat are adjustable with respect to retainer portions.

FIG. 12 illustrates an example of a lens retainer portion with anadjustment channel.

FIGS. 13A-13C illustrate an example of a communication device on whichan example of a lens system from FIGS. 11A-11F has been attached.

FIGS. 14A-14B illustrate an example of a communication device with alight enhancement component on a lens system.

FIGS. 15A-15B illustrate an example of a communication device withanother light enhancement component on a lens system.

FIGS. 16A-16F illustrate an example of a lens system that includes anadaptor.

FIGS. 17A-17B illustrate an example of a lens component that includes amount feature.

FIGS. 18A-18C illustrate the lens component of FIGS. 17A-17B configuredfor mounting to a tripod.

FIGS. 19A-19C illustrate an example of a lens component that includes astorage or attachment feature along the side of the lens component forstoring a lens or other device.

FIG. 20 illustrates examples of a lens system that includes anattachment to be used with an accessory such as a keychain.

FIG. 21 illustrates examples of a lens system that includes anattachment to be used with an accessory such as a necklace.

FIG. 22 illustrates examples of a lens system that includes anattachment to be used with an accessory such as a bracelet.

FIGS. 23A-23E illustrate an example of a lens system that includes alens hood.

FIGS. 24A-24D illustrate an example of a lens system that includesdetachable lenses.

FIG. 25 illustrates an example of a lens system with an interior lens.

Many other types of communication devices besides those illustrated anddescribed herein can be used.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following detailed description is now directed to certain specificexamples of embodiments of the disclosure. In this description,reference is made to the drawings wherein like parts are designated withlike numerals throughout the description and the drawings. Theinventions are not limited to the examples expressly illustrated ordescribed in this specification.

Referring to FIGS. 1A-1I, an example of a removably attachable lenscomponent 110 is illustrated in many different views. In someembodiments, as illustrated, the lens component 110 can generallycomprise a retainer portion 112 and a lens portion 114. The retainerportion 112 is generally configured to be removably attachable to acommunication device such that the lens portion 114 can be positioned ina region generally covering or near an onboard camera lens in thecommunication device to enable the lens portion 114 to cooperateoptically with the onboard camera, to provide optical enhancements,improvements, modifications, and/or alternatives. In some embodiments,as illustrated, the retainer portion 112 is shaped so as to attach tothe communication device in a region and in a manner that permits a userto see all or virtually all of a viewing portion 131 of thecommunication device without obstruction or without appreciableobstruction.

For example, the retainer portion 112 can comprise a channel 116 with aplurality of sidewalls 118. The width of the channel 116, e.g., thedistance between the respective sidewalls 118, can be configured to begenerally complimentary to the thickness of a portion of thecommunication device(s) on which the retainer portion 112 is configuredto attach. In some embodiments, the natural width of the channel 116 isapproximately the same size or slightly smaller than the thickness of acorner, such as an upper corner, of the outside housing of acommunication device near the light aperture of the onboard camera ofthe communication device.

In some embodiments, as illustrated, one or more of the plurality ofwalls 118 can have a curvilinear shape 119 along one or more edges topermit the retainer portion 112 to provide increased distance of contactalong the edge of the communication device while diminishing the areaacross a transverse surface of the device that is obstructed by theretainer portion 112. For example, in some embodiments, as illustrated,the curvilinear shape along one or more edges of the walls 118 permitsthe retainer portion 112 to extend along and attach to at least aportion of two generally converging or generally perpendicular outeredges or sides of a communication device that is approximately as wideas the lens portion 114, while diminishing the amount of space on thefront of the device that is blocked. In the example shown in FIGS.1A-1I, the curvilinear shape of the edge of the walls 118 can avoid oromit a lower pointed or sharp corner that may otherwise extend into andobstruct the viewing portion of the communication device. In someembodiments, the retainer does not appreciably block or obstruct theviewing surface, as shown in FIG. 2B.

All or part of the retainer portion 112, such as one or more of theplurality of walls 118, can be made of a material (e.g., a polymer or asilicone) that is sufficiently flexible to permit deformation (e.g.,compression, bending, or stretching) of one or more walls 118, so thatthe channel 116 can be temporarily widened while sliding the lenscomponent 110 onto a communication device, but at least a portion of oneor more of the walls 118 can be sufficiently stiff, rigid, or resilientto urge one or more of the plurality of walls 118 to return to itsoriginal position and thereby exert a gripping force against a portionof the communication device. The material of the retainer portion 112,especially the region on the inner side of the walls 118 within thechannel 116, can also be tacky or somewhat slide resistant to enhancethe gripping of the retainer portion 112 to the communication device. Insome embodiments, the gripping force and/or slide resistance can reduceor eliminate the need to attach a permanent or temporary mountingcomponent to the communication device. For example, the lens component110 can be repeatedly attached to and removed from a communicationdevice without requiring (though not prohibiting) installation on thecommunication device of a separate permanently or semi-permanentlyattached mounting component such as a bracket, magnet, adhesive, orother fastening component, thereby providing ease of installation whilepreserving the original overall shape, appearance, functionality,compatibility (e.g., with other communication devices or cases), and/orfeel of the communication device when the lens component is removed.

The retainer portion 112 can also comprise an upper wall 120 that can beshaped in some embodiments to generally correspond to the shape of oneor more edges of a communication device. As illustrated, the upper wall120 has a generally curvilinear shape with a rounded corner 122. Theretainer portion 114 can also include one or more internal surfacecontours 124 configured to generally avoid interference with one or moreexternal features on a communication device. For example, asillustrated, the channel 116 can include a surface contour 124 in thefoam of a groove to avoid interference or inadvertent contact with abutton or other feature on a communication device when the lenscomponent 110 is attached to the communication device. As illustrated,the sidewalls 118 of the retainer 112 can comprise one or more generallypointed or angular regions 129.

In some embodiments, as illustrated, the retainer portion 112 can beconfigured to grip two nonparallel sides of a communication device. Forexample, the retainer portion 112 can contact at least a first generallyvertical side or edge surface 133 of a communication device and at leasta second generally horizontal and generally orthogonal side or edgesurface 134 of a communication device (e.g., the lateral side and thetop side of the communication device) at the same time during use. Insome embodiments, this contact by multiple generally perpendicular edgesor surfaces permits repeatable adequately precise placement of theretainer portion 112 in a single attachment motion without requiringuser adjustment of the location or structure of the retainer portion 112during attachment. In some embodiments, two or more contacting surfacesin the retainer portion 112 can converge at an upper corner having arounded external surface. In some embodiments, as illustrated, theretainer portion 112 is substantially smaller than the communicationdevice to which it is configured to attach, or even substantiallysmaller than the viewing portion of the communication device to which itis configured to attach. In some embodiments, a retainer can beconfigured to contact only one side or edge (e.g., the generallyvertical or the generally horizontal side or edge), such as bycontacting both the front and rear surface of such side of edge butwithout also requiring contact with another side or edge. An example ofsuch an embodiment can generally be formed from a retainer portion witha general U-shape comprising an upper wall, two side walls, and anopening on each side of the side walls.

In some embodiments, the retainer portion 112 can permit the lenscomponent 110 to be attached to a communication device without requiringnon-stock mounts on the communication device and without requiringdynamic mounts on the retainer portion 112 itself (e.g. fasteners,screws, adjustable clamps, etc.). Thus, a user can attach the lenscomponent 110 to a corner of a communication device by simply slidingit, for example, onto the corner of the communication device, and canremove it by simply pulling it off, without requiring user adjustmentduring attachment. In some embodiments, as illustrated, the lenscomponent 110 can remain on the communication device by way of afriction fit. The attachment to the communication device can avoid aresidue deposit from adhesive, scratches to the exterior surface, orother damage or alteration of the communication device. In someembodiments, the retainer portion can be sufficiently wide and/or longso that it is adapted to receive an end and/or side region (e.g., two ormore corners) of a communication device rather than merely one corner,and the other aspects of other embodiments disclosed herein can apply tosuch embodiments, including but not limited to the shape and materialsof construction and the accomplishment of a friction fit between theretainer portion and the end and/or side region of a communicationdevice.

The lens portion 114 generally comprises a transparent lens 128, whichis typically made of a glass or a polymer, and a securing structure 126.The securing structure 126 can be made of many different types ofmaterials or combinations of materials, such as metals (e.g., aluminumor steel) or plastics. The securing structure 126 can include agenerally wide-area opening for receiving the lens 128 and a generallynarrow-area region for attachment to the retainer portion 112. In someembodiments, the securing structure 126 and the retainer portion 112 canbe configured to slide or otherwise move with respect to each other in alimited manner to allow for adjustment of the position of the lens 128with respect to the onboard camera lens of a communication device (e.g.,for the purpose of addressing manufacturing tolerances in the locationof the onboard camera lenses in some communication devices). Asillustrated, the mechanism or structure for attachment or securement ofthe lens portion 114 to the retainer portion 112 can be separate fromand/or can operate independently of the mechanism or structure forattachment or securement of the retainer portion 112 to thecommunication device. In some embodiments, as illustrated, the outsidesurface of the securing structure 126 can taper inwardly from thelens-receiving region to the retainer-attaching region to diminish theamount of material used in manufacturing and to diminish the size andweight of the retainer lens portion 114. In some embodiments, the lenscomponent can be very small, such as less than or equal to about 2½inches or less than or equal to about 1½ inches across.

The lens 128 can include multiple lenses or lens components. In someembodiments (not shown), the lens component 110 can comprise morecomplex lensing systems, such as lensing systems in which the focallength of the lensing system can be manually or electronically adjusted,such as with a lever or rolling dial or with electronic or motorcontrol, which may be positioned between the lens 128 and the retainerportion 112. An electronic or motor control can be attached and adjustedusing software in the communication device, either by a wired orwireless connection to the mobile communication device. Otherspecialized lenses in the lensing system can include a telephoto lenssystems configured to enlarge images, wide-angle lenses, fish-eyelenses, macroscopic lenses, and microscopic lenses.

The lens 128 can also comprise coatings or other features to increasescratch resistance, diminish glare or reflection, or decrease or filterlight transmitted through the lens 128. The lens component 110 can alsoinclude a cover configured to be fitted over the lens 128 during storageand transportation. The lens component 110 can comprise other storageand transportation features, such as a quick-release or other attachmentstructure to enable the lens component 110 to be conveniently carried bya user on a standard accessory carried by a person, such as a key ring,belt loop, bracelet, necklace, or other easily accessible location whennot attached to a communication device. A collection or kit of differentlens components 110 with various lenses having different lens features,including those described herein, can be provided within a storage caseto address various photographic needs.

As illustrated in FIGS. 2A-2B and 3A-3B, the lens component 110 can bemoved into proximity with a communication device 130, 134 that includesan onboard camera 132. In some embodiments, a lens component 110 can besold or provided together as a system with the communication device 130,134. The communication devices 130, 134 shown in FIGS. 2A-2B and 3A-3Bare versions of the iPhone mobile phone sold by Apple, Inc. The lenscomponent 110 can be oriented so that the channel 116 is directeddownwardly in general alignment with an edge or corner of thecommunication device 130 on which the lens component 110 will be mountedand rotated so that the lens 128 will be generally aligned with theonboard camera 132. As the channel 116 contacts the edge or corner ofthe communication device 130, the channel 116 may expand slightly as thewalls 118 flex or bend outwardly. A restoring force produced by theretainer portion 112 can urge the walls 118 back toward their originalposition, which can help to retain the lens component 110 on thecommunication device 130 during use. The lens 128 can then temporarilyprovide an enlarged, better focused, clearer, or otherwise enhanced,altered, manipulable, or improved image for the onboard camera 132.

FIGS. 4A-4B and 5A-5B illustrate examples of lens components 200, 202configured to be used on tablet-type communication devices 204, 206. Inthe illustrated examples, the communication device 204 is an iPadcommunication device sold by Apple, Inc., and the communication device206 is a Galaxy tablet sold by Samsung. The lens components 200, 202 caninclude various features and structures of the lens component 110illustrated and described in connection with FIGS. 1A-1I. In someembodiments, as illustrated in FIGS. 4A-B and 5A-5B, the lens components204, 206 can include a retainer portion 208 with walls 210, 212 ofdifferent sizes and lengths. A longer or wider-area wall 212 can beprovided on a side of the retainer portion 208 that is configured tosuspend the lens 128 in front of the camera 132, while a shorter orsmaller-area wall 210 can be provided on a side of the retainer portion208 that is configured to extend over a portion of the surface on whichthe viewing portion of the communication device 204, 206 is located. Theretainer portion 208 can be configured to securely attach the lenscomponents 200, 202 while diminishing or eliminating obstruction of theviewing portion. An aperture or other functional access region 216 canbe provided in the retainer portion 208 to permit access to controls orother interaction structures on the communication devices 204, 206 whenthe lens components 200, 202 are attached.

FIGS. 6A-6B illustrate an example of a lens component 302 with aretainer portion 308 that comprises a plurality of attachment arms 304that include attachment structures, such as hook portions 306, that canpartially or completely overhang on a portion of a communication device306 or that are oriented in a generally transverse direction to the mainportion of the attachment arms 304. As illustrated, the attachment arms304 can be generally tapered from a central, wider portion to aperipheral, narrower portion to provide sufficient structural rigidityand retaining force. The lens component 302 can include the variousfeatures of the other lens components 110, 200 described herein. Thecommunication device illustrated in FIGS. 6A-6B is an EVO communicationdevice sold by HTC Corporation. The attachment arms 304 can assist inattaching the lens component 302 to a device, such as the EVO device, inwhich the camera 310 is not positioned near a corner of the device.

FIGS. 7A-7I illustrate several views of an example of a lens component400 in which a plurality of lenses 402, 404 can be attached to the sameretainer portion 406. In this example, the user can have at least twodifferent options for the type of lens to use in a particularphotographic application. For example, one of the lenses 402, 404 canprovide a wide-angle view and another one of the lenses 402, 404 canprovide a fish-eye view. Many other lens options are possible. Forexample, one or more lenses can be provided with different colorfiltering capabilities, different light attenuation capabilities,different lens coatings (such as anti-reflection coatings), anddifferences in other optical properties to provide multiple useroptions. Different lenses can include any combinations of these or otheroptical features. The retainer portion 406 can include various featuresof the other retainer portions illustrated and described herein.

FIGS. 8A-8I and 9A-9E illustrate several views of an example of a lenscomponent 400 a that is similar or identical in many ways to lenscomponent 400 in FIGS. 7A-7I. Lens component 400 a includes a channel416 for receiving a portion of a communication device. The channel 416includes an attachment-facilitating surface 418. In the illustratedexample, the attachment-facilitating surface 418 comprises an inwardlycurved (e.g., sloped or slanted) surface positioned along the outer edgeor slotted opening of the channel 416. In some embodiments, theattachment-facilitating surface 418 can be positioned at or near anouter edge of the channel 416. As illustrated, theattachment-facilitating surface can be thinner near the edge and cangradually become thicker as it progresses further into the channel 416.

As the lens component 400 a is moved into an attachment position on acommunication device, the attachment-facilitating surface 418 canprovide an initial contact region or opening 420 a (see, e.g., FIGS. 8Gand 8H) near the outer edge 422 that is effectively wider to facilitateproper orientation and attachment of the device by a user, and anarrower second region 420 b further within the channel 416 (or furtherfrom the edge of the lens component 400 a), thereby providing a moresecure attachment surface as the lens component 400 a is moved furtheronto the attachment region of the communication device. In someembodiments, as illustrated, the width of the channel 416 can changebetween the initial contact region 420 a and the second region 420 b ina smooth, gradual, and/or curvilinear manner. Some embodiments caninclude many other types of shapes. For example, theattachment-facilitating surface 418 can include a discontinuous surfaceor a series of discrete ramps, protrusions, or grooves. Anattachment-facilitating surface 418 can be included on any embodiment ofa lens component and is not limited to use in the lens component 400 aas illustrated in FIGS. 8A-8I and 9A-9E.

As illustrated in FIGS. 10A-10C, the user can select which of theplurality of lenses 402, 404 to position in front of the camera 132 ofthe communication device 134 to achieve a desired photographic affect.In FIG. 10A, the lens component 400 is moved into an attachment positionon a communication device 134 such that a first (e.g., smaller-diameter)lens 402 is positioned in front of the onboard camera lens 132 and a(e.g., second larger-diameter) lens 404 is positioned on an oppositeside of the communication device 134. In this orientation, thesmaller-diameter lens 402 is operative and the larger-diameter lens 404is not operative. In FIG. 10B, the lens component 400 is removed fromthe communication device, rotated about a vertical axis (e.g.,approximately 180° in this example), and rotated about a horizontal axisto orient the channel 416 in general alignment with an attachmentsurface (e.g., a housing edge) of the communication device. In FIG. 10C,the lens component 400 is again advanced onto the communication device134 such that the larger-diameter lens 404 is positioned in front of theonboard camera lens 132 and the smaller-diameter lens 402 is positionedon an opposite side of the communication device 134. In thisorientation, the larger-diameter lens 404 is operative and thesmaller-diameter lens 402 is not operative. In some embodiments, thisconfiguration of a lens component 400 can conveniently permit multiplelens options without necessarily requiring the user to hold or storemultiple discreet lens components. In some embodiments, more than twolens types or features can be included in the lens component 400,thereby providing the user with many lens options.

FIGS. 11A-11F illustrate several views of an example of a lens component500 in which a lens 502 is attached to a retainer portion 504. The lenscomponent 500 can be attached to a communication device 134 in a mannersimilar to the lens components described above. When the user hasattached the lens component 500 to the communication device 134, theuser can adjust (e.g., tilt, swivel, or otherwise move) the lens 502with respect to the communication device 134 (e.g., azimuthally, alongthe lens's vertical axis, along the lens's horizontal axis, acombination of these adjustments, etc.). The user can shift or otherwisemove the lens 502 into a plurality of positions with respect to theretainer to diminish misalignment between the onboard lens in thecommunication device, or to change the viewing angle of the lens 502, orfor some other reasons. In some embodiments, the user can shift ofotherwise move the lens 502 into at least a first and a second position,or at least a first, a second, and a third position, or gradually acrossan adjustment zone. In some embodiments, this adjustment can form a void506 behind the lens portion 502. The ability to adjust the lens 502 withrespect to the communication device 134 can be advantageous inaddressing manufacturing differences or tolerances in the locationand/or alignment of the onboard camera lenses in some communicationdevices.

In some embodiments, the tilting of the lens 502 is facilitated by apivot (not shown) on the portion of the lens facing the communicationdevice 134. The lens 502 is positioned in a channel formed by sidewalls508 of the retainer portion 504. In FIG. 11A, the lens 502 is tilted tothe left with respect to the communication device 134 such that a void506 is formed between the rear of the lens 502 and a panel of theretainer portion 504 or the communication device 134 when attached, andthe exterior walls of the lens portion 502 are non-parallel with theadjacent interior, walls of the lens retainer portion 502. Asillustrated, the distance between the rear of the lens 502 and aninterior edge, line, or cross-sectional region 507 of the retainerportion 504 is greater on a first side 509 than on a second side 511. Inthis orientation, the lens 502 can compensate for an off-centeralignment of the onboard camera of the communication device 134. Forexample, in the adjusted orientation shown in FIG. 11A, the central axisof the lens portion 502 can be brought into general alignment with thecentral axis of the onboard camera lens 132. FIG. 11B illustrates thelens 502 in a neutral position with respect to the communication device134. In this orientation, the lens 502 need not compensate for anyoff-center alignment of the onboard camera of the communication device134. FIG. 11C illustrates the lens 502 tilted to the right with respectto the communication device 134, forming a void 506 in a manner similarto FIG. 11A. In this orientation, the lens 502 can compensate for adifference or off-center alignment or location of the onboard camera ofthe communication device 134.

In some embodiments, the tilting of the lens 502 is facilitated by aball and socket joint formed by a ball 510 on the portion of the lens502 facing the communication device 134 and a socket 512 in the retainerportion 504. This embodiment can generally function in a manner similarto the embodiment in FIGS. 11A-11C. The ball portion 510 can approximatethe shape of a generally oblate spheroid and can have one or more flator straight portions. The ball portion 510 can be, but is not requiredto be, generally spheroid. In the embodiment illustrated in FIGS.11D-11E, the portion facing the communication device 134 is generallystraight or flat. The ball 510 can be positioned within a socket 512with a generally complementary shape, facilitating rotation of the lens502 with respect to the retainer portion 502 and communication device134. In FIG. 11D, the lens 502 is tilted to the left with respect to thecommunication device 134 such that a void 506 is formed between the ball510 and socket 512 or the communication device 134. In this orientation,the lens 502 can compensate for miscorrespondence in the alignment orlocation of the onboard camera of the communication device 134. FIG. 11Eillustrates the lens 502 in a generally neutral position with respect tothe communication device in which at least one wall of the retainerportion 504 can be generally parallel with either or both of the frontor back surfaces of the lens portion 502. In this orientation, the lens502 need not compensate for any miscorrespondence in the alignment orlocation of the onboard camera of the communication device 134. FIG. 11Fillustrates the lens 502 tilted to the right with respect to thecommunication device 134, forming a void 506 in a manner similar to FIG.11D. In this orientation, the lens 502 can compensate formiscorrespondence in the alignment or location of the onboard camera ofthe communication device 134 or otherwise help to adjust the nature ofthe photographic image produced. In the illustrated examples of FIGS.11D-11F, at least one wall of the retainer portion 504 can be generallynon-parallel with either or both of the front or back surfaces of thelens portion 102. As illustrated, the user can appropriately adjust thelens portion 502 with respect to the lens retainer portion 504.

As shown in FIG. 12, the lens retainer portion 504 can include one ormore generally circular retaining walls 530 for receiving a lens portion502 in an adjustable manner. The retaining walls 530 can include one ormore apertures 535. A radially interior surface 537 of either or both ofthe apertures 535 can include a first adjustment structure, such as anadjustment channel 540 with a width and depth configured to receive asecond adjustment structure on the lens portion 502, such as a ridge orbump. In the illustrated example, the adjustment channel 540 can besubstantially smaller in width than the width of the interior surface537 of the aperture 535 to provide a relatively small amount ofrestricted movement of the lens portion 502. For example, in someembodiments, the width of the adjustment channel 540 can be less than orequal to about 1.5 mm, and the interior of the adjustment channel 540can be tapered or beveled toward a generally central portion or line toincrease the force required to move the lens portion 502 away from aneutral position. The width of the ridge or bump on the lens portion 502can be less than the width of the adjustment channel 540, such as lessthan or equal to about ¾ of the width of the adjustment channel 540. Thefirst and second adjustment structures can fit closely or tightlytogether (e.g., in a radial interference fit) while permitting limitedmovement when a force is applied by a user in opposition to frictionalforces between the adjustment structures. In this example, the lensportion 502 can be adjusted by a user to move with respect to the lensretainer portion 504 when moved in a deliberate manner, but the lensportion 502 and retaining portion 504 can generally remain in placeuntil another adjustment. In some embodiments, the amount of adjustmentcan be relatively small, such as greater than or equal to about 0.5degrees and/or less than or equal to about 2.5 degrees between theorientation of the central longitudinal axis of the lens portion 502 inthe original position as compared to the orientation of the centrallongitudinal axis of the lens portion 102 in the fully adjustedposition. In some embodiments, the lens portion 502 can be adjusted tovarious positions between (or outside of) these points or ranges. Theamount of movement between the rear surface of the lens portion 502 andthe lens retainer portion 504 can be relatively small as well, such asgreater than or equal to about 0.1 mm and/or less than or equal to about1.0 mm between the original orientation and the fully adjustedorientation.

As illustrated in FIGS. 13A-13C, the user can adjust the tilt of thelens 502 with respect to the communication device 134 to improve thealignment or other correspondence between the lens 502 and the onboardcamera of the communication device 134. In FIG. 13A, the lens 502 is ina neutral position with respect to the communication device 134. Theimage on the screen 560 of the communication device 134 is off-center tothe left, as evidenced by the leftward orientation of the vignettingwhich would normally be centered about the image. FIG. 13B shows theuser 590 tilting the lens 502 to the right to compensate for theoff-center image on the communication device 134. FIG. 13C illustratesthe corrected image, with the vignetting centered about the image eventhough the onboard camera of the communication device is not alignedproperly. In some embodiments, the tilt of the lens 502 can be adjustedwhile the user 590 is viewing a live image from the onboard camera onthe screen 560 of the communication device 134, providing real-timefeedback to the user about whether the correct adjustment is being made.

FIGS. 14A-14B illustrate two views of a lens component 600 with a lensportion 630 and a light-enhancing feature, such as a light pipe 610. Thelight pipe 610 can be mounted to the retainer portion 660 or to someother portion of the lens component 600. The light pipe 610 conveyslight from a light source, such as a flash, to an exit point 620 so thatit may illuminate the area to be photographed. In some embodiments, thelight pipe 610 is made from material which facilitates conveyance oflight from the flash to the area to be photographed. In someembodiments, the interior of the light pipe 610 is lined with materialwhich facilitates conveyance of light from the onboard flash to the areato be photographed. The position of the flash 650 on the communicationdevice 134 illustrated in FIGS. 14A-14B is close enough to the onboardcamera 132 that the lens component 600 generally covers or otherwiseobstructs the flash 650 when it is attached to the communication device134. In some circumstances, this may prevent light from the flash 650from enhancing photographs taken when the lens component 600 isattached. The light pipe 610 conveys the light from the flash 650 to theexit point 620, and from there the light travels normally to illuminatethe area in front of the camera.

In some embodiments, the light pipe 610, retainer portion 660, and/orsome other portion of the lens component 600 can be configured togenerally or entirely surround the flash 650 and/or other region fromwhich light emanates to inhibit or prevent undesirable light transfer orleakage outside of the pathway from the onboard flash into the lightpipe 610. Such an undesirable transfer or leakage may include light fromthe onboard flash moving into the rear side of the lens portion 630 ofthe lens component 600 or light from the onboard flash moving outside ofthe region between the retainer portion 660 of the lens component 600and the communication device.

In some embodiments, the retainer portion 660 or another component canbe formed from various materials, including polymers (e.g.,polycarbonate), metals (e.g., aluminum), etc., or some combinationthereof. For example, at least a portion of the retainer portion 660 canbe formed using a multi-step molding process, such as multi-shotinjection molding, inserting molding, or overmolding, and/or theretainer portion 660 can include a coating, such as an adhesive, paint,or deposited film, to provide a region on the interior and/or exteriorof the retainer portion 660 that has a different durometer or appearancethan another portion of the retainer portion 660. In some embodiments, aharder shell or exterior can be provided in conjunction with a softerinterior surface. For example, an interior region of the retainerportion 660 that is intended to be positioned in contact with the cornerof the communication device can comprise a surface that is softer and/ormore tacky than an exterior region or a supporting region of theretainer portion 660. In some embodiments, the softer or more tackysurface can provide an enhanced light seal by compressing against thecommunication device to inhibit or prevent light leakage.

FIGS. 15A-15B illustrate two views of a lens component 600 a with alight pipe 610 a. In many respects, the light pipe 610 a is similar oridentical to the light pipe 610 described above. The exit point 620 a ofthe light pipe 610 a can generally or completely surround the lens 630a, providing a generally ring-shaped flash. This can be particularlydesirable for use in macro (or close-up) photography. Thelight-enhancing feature can also be provided by a flash or other lightsource on the lens component 600, without requiring use or connectionwith an onboard flash.

In some embodiments, a light-enhancement feature can include anexternally attachable flash component connected to the lens component110 that can be selectively configured to be in electronic communicationwith the communication device (e.g., by way of a wireless protocol suchas the Bluetooth® protocol, or by way of a wired connection such as aUSB or serial connection, etc.). The flash can be powered by and/oractuated by the communication device. In some embodiments, the flash canpivot, tilt, or otherwise move with respect to the retainer portion 112to direct light as desired by the user.

In some embodiments, as illustrated and described herein, lenscomponents can include retainer portions with attachment structuresconfigured to be removably attached to communication devices, even whenthe communication devices themselves are generally smooth or flat and donot have corresponding attachment structures in the region near theonboard camera. In this way, the communication devices are not requiredto be permanently or temporarily modified, reconfigured, defaced, orotherwise altered in appearance to permit attachment of the lenscomponents. In some embodiments, this arrangement can permituninterrupted and unobstructed, normal use of the communication devicewhen the lens component is removed. However, in some embodiments,modifications to the communication devices may be useful or necessary toattach the lens components.

FIGS. 16A-16F illustrate views of a lens system 700. The lens system 700can include a lens component 702. The lens component 702 can be similarto other lens components described herein. For example, the lenscomponent 702 can comprise similar or identical structures as lenscomponent 400 or 400 a. The lens component 702 can include one or morelenses 704, 706 that are attached to (e.g. releasably coupled to, orintegrally formed with) the same retainer portion 708. With more thanone lens, the user can have at least two different options for the typeof lens to use in a particular photographic application. For example,one of the lenses 704, 706 can provide a wide-angle view and another oneof the lenses 704, 706 can provide a fish-eye view. The retainer portion708 can include various features of the other retainer portionsillustrated and described herein. For example, the retainer portion 708can include a channel 709.

The lens system 700 can further include an adaptor 710. The adaptor 710can comprise a separate or independent piece from that of the lenscomponent 702. The adaptor 710 can include a first adaptor connectionportion 712. The first adaptor connection portion 712 can be configuredto be removably attachable to a communication device 720 that has ashape that is different from the standard communication device to whichthe lens component 702 is normally configured to attach, for example asshown in FIG. 16D. The first adaptor connection portion 712 can includea channel 714. The channel 714 can be sized and/or shaped to correspondto the size and/or shape of at least a portion of the communicationdevice 720, such that the adaptor 710 can slide over a portion (e.g. acorner) of the communication device 720, and be held in place on thecommunication device 720 (e.g., by way of a friction fit).

The adaptor 710 can further include a second adaptor connection portion716. The second adaptor connection portion 716 can be sized and/orshaped such that it is received within the channel 709 on the lenscomponent 702. The second adaptor connection portion 716 can include atleast one opening 718 to permit optical communication between the lens704, 706 and a corresponding onboard camera 722 on the communicationdevice 720.

The adaptor 710 and lens component 702 can be positioned such that thelens 704, 706 is positioned in a region generally covering or near theonboard camera 722 in the communication device 720 to enable the lens704, 706 to cooperate optically with the onboard camera, to provideoptical enhancements, improvements, modifications, and/or alternatives.In some embodiments, as illustrated, the adaptor 710 and lens component702 are shaped so as to attach to the communication device 720 in aregion and in a manner that permits a user to see a viewing portion ofthe communication device 720 without obstruction or without appreciateobstruction.

The lens component 702 can be removably attached to the adaptor 710 in avariety of manners. For example, the lens component 702 can be attachedsolely via a friction fit between the retainer portion 708 and thesecond adaptor connection portion 716. In some embodiments, the lenscomponent 702 can snap into place on top of the adaptor 710. Otherattachment options are also possible.

The adaptor 710 can allow the lens component 702 to be used with one ormore different communication devices. For example, the adaptor 710 canallow the lens component 702 to be used with a communication device thatis different in size, thickness, and/or shape than one that the lenscomponent 702 is typically designed for. For example, in someembodiments, the communication device 720 can comprise an iPod Touchdevice, manufactured by Apple, Inc., and another communication device134 can comprise an iPhone, also manufactured by Apple, Inc. The iPhoneis typically larger, and thicker, than the iPod Touch. If the lenscomponent 702 is designed and sized to specifically fit onto the iPhone,but not onto the iPod Touch, the user can conveniently and simply usethe adaptor 710 in order to use the lens component 702 with thecommunication device 720.

FIGS. 17A-17B illustrate an example of an attachment component 800 foruse in applications where a communication device is intended to bemounted temporarily on a support structure to take a photo or video. Theattachment component 800 can include one or more lenses 802, 804 thatare attached to the same retainer portion 806. The retainer portion 806can include a channel 808, similar or identical to the channelsdescribed above, for attaching the attachment component 800 to a portion(e.g. corner) of the communication device 134. In some embodiments, theretainer portion 806 can further include stabilizing or securing memberssuch as at least one or more elongate ridges 810, 812. The elongateridges 810, 812 can extend away from the lens 802, 804, and can be usedto grasp onto and/or hold the attachment component 800 in place on thecommunication device 134. In some embodiments, as illustrated, the widthof the elongate ridges 810, 812 is less than the thickness of thecommunication device to which the lens component is configured to attachand the elongate ridges 810, 812 extend across the front viewing surfaceof the communication device along a narrow front edge and terminatebefore obscuring any appreciable portion of the viewing area. Theretainer portion 806 can also include a connector opening 814 at one endof the attachment component 800.

As illustrated in FIG. 17B, the attachment component 800 can be attachedto the communication device 134 (e.g. iPhone), such that the elongateridges 810, 812 extend over and grasp onto a side edge 816 of thecommunication device 134. The ridges 810, 812 can help to hold theattachment component 800 in place on the communication device 134. Othertypes of structure, other than ridges 810, 812 can also be used.

As illustrated in FIGS. 18A-18C, the attachment component 800 can beattached to a support structure 818 (e.g. a tripod). For example,attachment component 800 can be attached to a base portion 820 of thesupport structure 818. The base portion 820 can be screwed into, orotherwise attached to, the retainer portion 806 of the attachmentcomponent 800. In some embodiments the connector opening 814 can includeinternal threading, and the base portion can include a screw or otherstructure that has external threads, such that the base portion 820 canbe screwed into the connector opening 814. Other types of connection arealso possible, including a snap-fit or other type of connectionmechanism that permits a quick, releasable connection between theattachment component 800 and the support structure 818.

In some embodiments, the base portion 820 of the support structure 818can either include, or be connected with, a mounting arm 822. In someembodiments the retainer portion 806 of the attachment component 800 cancomprise the mounting arm 822. The mounting arm 822 can be used toadjust the position of the communication device 134. For example, asillustrated in FIG. 18C, without the mounting arm 822, the communicationdevice 134 is in a generally horizontal or landscape position on top ofthe support structure 818, whereas with the mounting arm 822, asillustrated in FIG. 18B, the communication device 134 is positioned to aside of the base portion 820, and is in a vertical position. Other typesof mounting arms or structures are also possible. In some embodiments,as illustrated, the attachment component 800 comprises one or morelenses, and in some embodiments, the attachment component 800 has nolenses.

FIGS. 19A-19C illustrate a lens component 900 that permits storage ofadditional lenses, lens caps, or other devices. The lens component 900can include one or more lenses 902, 904 that are attached to the sameretainer portion 906. The retainer portion 906 can include a channel(not shown), similar to the channels described above, for attaching thelens component 900 to a portion (e.g. corner) of the communicationdevice 134.

The lens component 900 can further include at least one attachmentfeature 908. The storage attachment feature 908 can comprise an opening,ridge, button, or other structure located generally orthogonally alongthe lens component 900 that is configured to contact, hold, and/orreceive a device. For example, the attachment feature 908 can comprisean opening configured to receive a portion of lens 902. The storageattachment feature 908 can be located on the retainer portion 906. Thestorage attachment feature 908 can attach (e.g. releasably attach) to aplurality of different sized lenses, including but not limited to lenses902 and/or 904 as illustrated. The storage attachment feature 908 canalso, or alternatively, releasably attach to a lens cap (not shown), orother types of devices.

In some embodiments, the storage attachment feature 908 can permit oneor more devices (e.g. lenses) to be stored and/or carried along a sideof the lens component 900 until needed for use. When a device is neededfor use, the device can be removed from the storage attachment feature908, and attached along a different area of the lens component 900. Forexample, in some embodiments, and as illustrated in FIG. 19A, the lens902 can be removed from an opening 910 along the retainer portion 906.The opening 910 can include threads or other structure generally forholding the lens 902. Once removed, the lens 902 can be attached to thestorage attachment feature 908 along the side of the lens component 900,as illustrated in FIG. 19B. At such time, a different lens can then beinserted into the opening 910 if desired. Once the lens 902 is neededagain, the lens 902 can be removed from the storage attachment feature908, and again placed back into the opening 910.

FIGS. 20-22 illustrate examples of a lens system 1000 that are used withperson-carried accessories such as keys, necklaces, bracelets, or otherdevices. The lens system 1000 can include a lens component 1002. Thelens component 1002 can be similar or identical to any of the lenscomponents described herein. For example, the lens component 1002 can besimilar to lens component 400 or 400 a. The lens component 1002 caninclude one or more lenses 1004, 1006 that are attached to the sameretainer portion 1008. The retainer portion 1008 can include variousfeatures of the other retainer portions illustrated and describedherein. For example, the retainer portion 1008 can include a channel1010.

The lens system 1000 can include an attachment component such as a plug1012. The attachment component can be configured to remain on orconnected with a person-carrier accessory, while the lens component 1002can be selectively detached during use. The plug 1012 can be sized andshaped so as to be received by the channel 1010. The plug 1012 caninclude one or more accessory attachment features 1014. The accessoryattachment feature 1014 can comprise, for example, a small ring orhalf-ring that protrudes from the rest of the plug 1012. The accessoryattachment feature 1014 can be attached to a set of keys 1016, necklace1018, bracelet 1020, or any other similar device.

The lens system 1000 can allow a user to wear and/or carry the lenscomponent 1002 with him or her, in an easy and convenient manner. Thelens component 1002 can be quickly removed from the plug 1012 and usedwith a communication device, such as one of the communication devicesdescribed herein, and then returned again to the plug 1012 and/or keys1016, as illustrated in FIG. 20, necklace 1018 as illustrated in FIG.21, bracelet 1020 as illustrated in FIG. 22, etc. once the user is done.

FIGS. 23A-23E illustrate an example of a lens system 1100 that can beused to reduce lens flare and protect a lens. The lens system 1100 caninclude a lens component 1102. The lens component 1102 can includestructures that are similar or identical to the lens componentsdescribed herein. For example, the lens component 1102 can be similar tolens component 110. The lens component 1102 can include one or morelenses 1104 that are attached to the same retainer portion 1106. Theretainer portion 1106 can include various features of the other retainerportions illustrated and described herein. For example, the retainerportion 1106 can include a channel (not shown).

The lens system 1100 can further include a lens hood 1108. The lens hood1108 can be a separate piece that is configured to attach to the lenscomponent 1102. The lens hood 1108 can comprise an opening 1110configured to fit over the lens 1104. The lens hood 1108 can compriseflared portions 1112, 1114 that extend away from the opening 1110. Theflared portions 1112, 1114 can be configured to provide protection forthe lens 1104, so as to reduce lens flare.

In use, the lens hood 1108 can be releasably attached to the lens 1104,for example by simply sliding the opening 1110 of the lens hood 1108over an edge 1116 of the lens 1104. The lens hood 1108 can be held inplace via friction fit, though other connection mechanisms are alsopossible. Once attached, the flared portions 1112, 1114 can bepositioned as desired by twisting or rotating the lens hood 1108. Theflared portions 1112, 1114 can then protect the lens 1104 while the lens1104 is in use. Once the lens 1104 is no longer in use, the lens hood1108 can be removed from the lens component 1102, turned around 180degrees, as illustrated in FIGS. 23C-23E, and placed back over the lens1104. In this position, the lens hood 1108 can not only be easily storedfor future use, but can also help to protect the lens 1104 and/or lenscomponent 1102 from damage and/or wear.

FIGS. 24A-24D illustrate an example of a lens system 1200 that caninclude a selectively attachable and detachable lens or a plurality ofdifferent selectively attachable and detachable swappable lenses. Thelens system 1200 can include a lens component 1202. The lens component1202 can be similar to one of the lens components described herein. Forexample, the lens component 1202 can be similar to lens component 110.The lens component 1202 can include one or more lenses 1204 that areattached to the same retainer portion 1206. The retainer portion 1206can include various features of the other retainer portions illustratedand described herein. For example, the retainer portion 1206 can includea channel (not shown).

As described above, the lens system 1200 can include the ability to swaplenses. Thus, the lens component 1204 can be removably attached to theretainer portion 1206. For example, the retainer portion 1206 caninclude a lens attachment portion 1208. The lens 1204 can be removablyattached to the retainer portion 1206 at the lens attachment portion1208. For example, the lens attachment portion 1208 can comprise anopening with threads, and the lens 1204 (or other lens) can be screwedinto the opening 1208, or the lens can snap-fit or otherwise simply bepushed into the opening 1208. Other connection mechanisms are alsopossible. For example, the lens can be temporarily locked in with abayonet mount, or a magnetic mount or other structure can be used.

The lens system 1200 can further include one or more additional lenscomponents, such as a second lens component 1210. In some embodiments,the second lens component 1210 can comprise a lens 1212 with a lens hood1214. The second lens component 1210 can be a separate piece that isconfigured to attach to the retainer portion 1206, similar to lens 1204.For example, the second lens component 1210 can be attached to the lensattachment portion 1208. Thus, depending on user preference, a user canselect a lens 1204, a lens 1212 with hood 1214, or other types of lensesfor use with the lens system 1200.

FIG. 25 illustrates an example of the lens system 1200 that includes oneor more interior lens components. In some embodiments, the lens system1200 can include an embedded lens component 1216. The retainer portion1206 or the embedded lens component 1216 can comprise a connectionportion, such as a threaded portion, that can be similar to the lensattachment portion 1208, described above. The threaded portion canfacilitate removably attaching lenses, such as lens 1204, to theretainer portion 1206. In some embodiments, the retainer portion 1206and/or the embedded lens component 1216 can include a lens 1218. Asillustrated, the embedded lens component 1216 can be generally flushwith or inset within the walls of the retainer portion 1206. In someembodiments, the lens 1218 can be a macro lens configured to magnify animage by at least about 4× magnification. Many different magnificationsare possible. In some embodiments, the lens 1218 can be a macro lensconfigured to apply a magnification of at least about 5× magnificationand/less than or equal to about 15× magnification, etc. In someembodiments, multiple lenses can be configured to provide a variableoptical magnification (e.g., a zoom feature) by permitting manipulationof the distance between the lenses, such as with a lever or rotatingactuator (e.g., a thumb wheel).

Although this invention has been disclosed in the context of a certainpreferred embodiments and examples, it will be understood by thoseskilled in the art that the present invention extends beyond thespecifically disclosed embodiments to other alternative embodimentsand/or uses of the invention and obvious modifications and equivalentsthereof. It is also contemplated that various combinations orsubcombinations of the specific features and aspects of the embodimentsmay be made and still fall within the scope of the invention.Accordingly, it should be understood that various features and aspectsof the disclosed embodiments can be combine with or substituted for oneanother in order to form varying modes of the disclosed invention.

1. A removably attachable auxiliary lens system for use with a mobilecommunication device for altering light received by an onboard camera ofthe mobile communication device, the lens system comprising: a retainerportion configured to removably attach to a mobile communication devicein a region of the mobile communication device positioned near anonboard camera of the mobile communication device; and a lens attachedto the retainer portion, the lens being configured to be tilted topermit the lens to move with respect to the retainer portion and withrespect to the onboard camera of the mobile communication device, whilethe retainer portion remains attached to the mobile communicationdevice, such that the tilting of the lens does not affect the attachmentof the retainer portion to the mobile communication device.
 2. The lenssystem of claim 1 in combination with a mobile communication device. 3.The lens system of claim 1 in combination with a mobile communicationdevice with an onboard camera.
 4. The lens system of claim 1, whereinthe tilting of the lens occurs within the lens retainer.
 5. The lenssystem of claim 4, wherein a void forms behind the lens when the lens isadjusted
 6. The lens system of claim 1, wherein the tilting of the lenscauses a displayed image to shift when the lens system is attached to amobile communication device.
 7. The lens system of claim 4, wherein thelens is attached to a lens holder that comprises a curved surface thatcontacts a curved surface on the retainer portion.
 8. The lens system ofclaim 3, wherein the lens remains in a tilted position until moved to anew adjusted position.
 9. The lens system of claim 1, wherein thetilting of the lens helps to correct misalignment between the lens andthe onboard camera of the mobile communication device.
 10. The lenssystem of claim 1, wherein the retainer portion does not move when thelens is tilted.
 11. A lens system configured to be removably connectedto a mobile communication device to alter light received by an onboardcamera of the mobile communication device, the lens system comprising: aretainer portion configured to be removably attached to a mobilecommunication device on an edge of the mobile communication device; aplurality of lenses, each lens being adapted to attach to and detachfrom the same retainer portion, wherein the attachment of the lenses tothe retainer portion and the detachment of the lenses from the retainerportion is independent of the attachment of the retainer portion to themobile communication device.
 12. The lens system of claim 11, whereinone of the plurality of lenses produces a greater magnification of lightthan another of the plurality of lenses.
 13. The lens system of claim11, where one of the plurality of lenses is larger than another of theplurality of lenses.
 14. The lens system of claim 11, wherein at leastone of the plurality of lenses filters light.
 15. A lens systemconfigured to modify an image of light received by an onboard cameralens of a mobile communication device, the lens system comprising: aretainer portion configured to be secured to a mobile communicationdevice in a removable manner, the mobile communication device having afirst edge, a second edge, a third edge, and a fourth edge, and a frontsurface and a rear surface, the first and second edges of the mobilecommunication device being generally parallel to each other, and thethird and fourth edges of the mobile communication device beinggenerally parallel to each other, at least a portion of the retainerportion being removably positionable on the rear surface of the mobilecommunication device near an onboard camera of the mobile communicationdevice and near a corner of the mobile communication device where thefirst and third edges of the mobile communication device converge, theretainer portion being removably positionable on said surface withoutrequiring separate mounting structures affixed to the mobilecommunication device and without requiring contact between the retainerportion and the second or fourth edges of the mobile communicationdevice; and at least one lens attached to the retainer portion, the lensbeing configured to alter light received by the onboard camera of themobile communication device.
 16. The lens system of claim 15 incombination with the mobile communication device.
 17. The lens system ofclaim 15 in combination with the mobile communication device and theonboard camera.
 18. The lens system of claim 15, wherein the retainerportion comprises two sidewalls forming a channel.
 19. The lens systemof claim 18, wherein a distance between the sidewalls generallycorresponds to a thickness of a portion of the corner of the mobilecommunication device.
 20. The lens system of claim 19, wherein thesidewalls are configured to extend generally along at least a portion ofthe first and third edges of the mobile communication device.
 21. Thelens system of claim 20 in which the retainer portion is configured tobe removably attachable to the mobile communication device by slidingthe retainer portion over the corner region of the mobile communicationdevice, such that a portion of the retainer portion is in contact withthe front and rear surfaces of the mobile communication device afterattachment of the lens system to the mobile communication device. 22.The lens system of claim 21 in combination with the mobile communicationdevice.
 23. The lens system of claim 15, wherein the lens is removablyattached to the retainer portion.
 24. The lens system of claim 23comprising a plurality of lenses that are removably attachable to theretainer portion.
 25. The lens system of claim 23, wherein two or moreof the plurality of lenses have optical properties that differ from eachother.